package proxy.msb_proxy;/** * Created by Administrator on 2018-11-6. */public class Tank2 extends Tank {    // 坦克2 是坦克的代理（坦克2始终是调用父类的move方法）（继承）    public void move() {        long start = System.currentTimeMillis();        super.move();        long end = System.currentTimeMillis();        System.out.println("time:" + (end - start));    }}